SB 5.26.34
ye tv iha va andhavata-kusula-guhadisu bhutani nirundhanti tathamutra tesv evopavesya sagarena vahnina
dhumena nirundhanti.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Those who in this life confine other living entities in dark wells, granaries or mountain caves are put after death into the hell known as Avata-nirodhana. There they themselves are pushed into dark wells, where poisonous fumes and smoke suffocate them and they suffer very severely.